Offshore exploration in the arctic Alain Wassink GustoMSC

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Roderick Franklin
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1 Offshore exploration in the arctic Alain Wassink GustoMSC

2 Offshore exploration in the arctic Why? Challenges? What challenges? The heart of the matter: Principles Solutions

3 Why?

4 Offshore exploration in the arctic CHALLENGES? WHAT CHALLENGES?

5 Been there, done that

6 Or, not quite?

7 So, what s the difficulty?

8 It s ice Beaufort Sea Chukci Sea East Siberia? East Greenland West Greenland Kara sea Barents sea Harsh environment

9 It s ice

10 It s cold Beaufort Sea Chukci Sea East Siberia? East Greenland West Greenland Kara sea Barents sea Harsh environment

11 It s cold

12 It s shallow Beaufort Sea Chukci Sea East Sibria? East Greenland West Greenland Kara sea Barents sea Harsh environment

13 Maximum 2.5 / 6% waterdepth for drilling Maximum 8-12% waterdepth for disconnect It s shallow

14 Dutch Harbour USA It s remote Seattle USA Vancouver Canada Beaufort Sea Chukci Sea East Siberia? Halifax Canada East Greenland New Foundland Canada West Greenland North Sea Norway / UK Barents sea Harsh environment Kara sea Murmansk Russia

15 It s pristine and vulnerable

16 Offshore exploration in the arctic PRINCIPLES

17 Principles Robust and reliable Working environment driven Shallow and deepwater capable High autonomy Highest achievable standards of environmental protection

18 October Relief well allowance? The case for extending the season Ice too severe Suspend drilling January Ice start Suspend drilling April Relief well allowance July Start drilling Start drilling

19 The case for extending the season Imperial Oil (ExxonMobil) for Beaufort Sea preliminary plan: One well, three seasons

20 October The case for extending the season Increased drilling window January April July

21 Offshore exploration in the arctic SOLUTIONS

22 Rig selection: basic rig type Floater (moored) Jack-up type rig Moored floater as unique solution Floater (DP)

23 Rig selection Beaufort Sea Chukci Sea East Sibria? East Greenland West Greenland Kara sea Barents sea Harsh environment

24 Rig selection: basic rig type High arctic (Beaufort, Chuckci, Northern Greenland, Kara, East Siberian) Sub arctic (Seasonal high arctic and periodic ice infested such as southern Greenland, Barents) Winterized / Harsh environment Jack-up Semisubmersible Vessel +* * * ++ +

25 Rig selection: station keeping Dynamic positioning Turret mooring Spread mooring

26 Reducing the load Ice loads are the governing factor They are a simple(?) resultant of the size of the object Reduce the size. Reduce the load

27 Reducing the load

28 Drillship solutions Pelican Class 12 units (5 ice classed) GustoMSC 10,000 2 units GustoMSC P10,000 2 units PRD12,000 Compact class design P10,000 NG 14 units PRD12,000 Bully, 2 units NanuQ 5,000 TM / DP PRD12,000 Qdrill

29 Drillship solutions Example 1: Drillship for extended seasonal drilling: PRD12,000 Bully class Main Particulars: Single derrick with off-line standbuilding 8,250ft waterdepth MDR and 12,000ft waterdepth PRD 150 POB 90 days full autonomy DNV ICE-05 Dynamic Positioning and optional position mooring (with underwater fairleads)

30 Drillship solutions

31 Drillship solutions Example 2: Drillship for year round drilling: NanuQ 5000 TM / DP Main Particulars: Single derrick with off-line standbuilding 5,000ft waterdepth, with drilling consumables storage for up to 2 wells 200+ POB 120 days full autonomy PC1..4, supplemented by Russian ice classes to allow operations in all arctic offshore oil projects Turret Moored > point mooring, Ø 12.4m moonpool Dynamic Positioning > Based on ice-classed azimuthing units

32 From P10,000 to NanuQ

33 Drillships in Ice Logistics tailored for both open water and ice conditions Winterization of drilling package Winterization of accommodation Propulsion for transit under ice conditions Dynamic positioning or turret mooring High ice class hull, winterized marine systems

34 experience & drilling solutions Contact Alain Wassink February 2012

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